Squid and first-level subdirectories & second-level subdirectories on ext3/4
Ralf Hildebrandt <[email protected]>
| Newsgroups | gmane.comp.file-systems.ext3.user |
|---|---|
| Message-ID | <[email protected]> |
Squid, a proxy, is by its nature, storing large amounts of relatively small files in it's cache. As config optins it's offering: # 'Level-1' is the number of first-level subdirectories which # will be created under the 'Directory'. The default is 16. # # 'Level-2' is the number of second-level subdirectories which # will be created under each first-level directory. The default # is 256. Meaning one has /squid-cache/(16 dirs)/(256 dirs)/(the small files) so the total number of small files in the cache is (hopefully) evenly distributed to 16*256 directories. But is that optimal for an ext3/4 filesystem? What is the point of using 16 for the first level and 256 for the second? Wouldn't 64*64 (which equals 16*256) be better when it comes to finding the files on disk? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 [email protected] | http://www.charite.de _______________________________________________ Ext3-users mailing list [email protected] https://www.redhat.com/mailman/listinfo/ext3-users